Jacks Purple Stuff Alternative

[waterbear]

Well - I guess I am stuck with an expensive addition. Waterbear - do you keep a sequestrant in? Do I really need this other than the warranty?

If I only need it to maintain the warranty - I can do what I have done with the other chemicals - get them in range and then take a sample to the pool store. After a few weeks, I only need to take a sample once a month.

I have had some staining (the curse of fiberglass pools) so I do keep some sequesterant in but not as much as recommeded. I only put the maintenance dose in once a month and that seems to work well for me. I would follow the PB's advice for the warrenty, however. 12 ppm should work out to be the maintenace dose on the bottle. I have never run across a pool store that actually has the test kit for seqesterant (HEDP) because the test kit is SO expensive!
I assume you have a plaster pool. New plaster can be prone to staining which is why they probably want it for the warrenty. IMHO, if there are no metals in your water it is not necessary to keep it up after the first year. If you do get any stains when you discontinue it just start a thread and we will walk you through how to get rid of them! It's really not that hard but is a bit inconvenient